ASRock Z97 Extreme6 Tests Samsung XP941 M.2 x4, Plextor M6e M.2 x2 and Samsung 840 Pro SATA 3 SSDs

SAMSUNG XP941 PCIE GEN 2 X4 M.2 SSD

The Samsung XP941 is the only SSD on the market that is capable of PCIe x4 performance over 1GB/s at present.  As with many Samsung products, it is technically not even a retail product and must be purchased through third party resellers.

Samsung-XP941-512GB-M2-SSD-Front-Branded2

We were lucky to have the XP941 in our hands and tested long before others and, not only have we been able to test it in several different configurations, we have also been able to contribute in the advance of this technology through our input to manufacturers.

ATTO DISK BENCHMARK VER. 2.46

ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.

XP941 ASRock Z97 Extreme6 ATTO

The XP941 starts out strong with speeds of just over 1GB/s read and write performance.  A quick check of our original reports might show speeds a bit higher, but relatively consistent.

CRYSTAL DISK BENCHMARK VER. 3.0 X64

Crystal Disk Benchmark is used to measure read and write performance through sampling of highly compressible data (oFill/1Fill), or random data which is, for the most part, incompressible. Performance is virtually identical, regardless of data sample so we thought we might cheat just a bit and throw in an ‘optimized’ result.

XP941 ASRock Z97 Extreme6 CDM

It’s always nice seeing low 4K random write performance of 122MB/s, but remember, this is the result of our system being left at it’s default BIOS settings where the C States are optimized and turned off.

AS SSD BENCHMARK VER 1.6

Up until recently, AS SSD was the only benchmark created specifically for SSD testing and it uses incompressible data.  AS SSD, for the most part, gives us the ‘worst case scenario’ in SSD transfer speeds because of its use of incompressible data and many enthusiasts like to AS SSD for their needs. Transfer speeds are displayed on the left with IOPS results on the right.

XP941 ASRock Z97 Extreme6 AS SSD BenchXP941 ASRock Z97 Extreme6 AS SSD IOPSAS SSD shows superior performance to Crystal Diskmarks and hitting 100K IOPS is ideal.  Take a look at this first file transfer speed in the AS SSD Copy Bench:

XP941 ASRock Z97 Extreme6 AS SSD Copy Bench

ANVIL STORAGE UTILITIES PROFESSIONAL (BETA)

You may not see this for long (and it’s definitely not common) but you get a freebee simply for reading! Over the last little while, we have been assisting with beta testing new benchmark software called Anvil Storage Utilities which is an absolutely amazing SSD benchmarking utility. Not only does it have a preset SSD benchmark, but also, it has included such things as endurance testing and threaded I/O read, write and mixed tests, all of which are very simple to understand and use in our benchmark testing.

XP941 ASRock Z97 Extreme6 Anvil

PCMARK VANTAGE X64 HDD SUITE

The SSD Review uses benchmark software called PCMark Vantage x64 HDD Suite to create testing scenarios that might be used in the typical user experience. There are eight tests in all and the tests performed record the speed of data movement in MB/s to which they are then given a numerical score after all of the tests are complete. The simulations are as follows:

  • Windows Defender In Use
  • Streaming Data from storage in games such as Alan Wake which allows for massive worlds and riveting non-stop action
  • Importing digital photos into Windows Photo Gallery
  • Starting the Vista Operating System
  • Home Video editing with Movie Maker which can be very time consuming
  • Media Center which can handle video recording, time shifting and streaming from Windows media center to an extender such as XBox
  • Cataloging a music library
  • Starting applications

XP941 ASRock Z97 Extreme6 Vantage

123698 points is an absolutely amazing result for any single form factor SSD and it great to see true to life transfer speeds as high as 818MB/s when testing in Windows Media Center.

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MikeGR7
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MikeGR7

Thanks for the article Les!
It’s great to see you opening up your reviews to more hardware while still keeping it relevant
to storage technologies!
I like the mobo but i still say that two 840 pros in raid 0 are still the way to go perf wise.
That said i can clearly see the patern of where the industry is moving and that’s the M.2.

Vext
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Vext

Can you elaborate on that? All the benchmarks suggest that’s not the case, but I could be misinterpreting the data as I’m new to the I/o performance conversation.

scope4live
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scope4live

I am just happy to see the XP941 being so fast as is. For me it’s win-win as the size of my 1U’s shrink, and at they same time they get faster, and bootable. I will use them to load my data into a RAM template, and rarely write to them. Lets hope our M$ gatekeepers will let us use 24GB out of 32GBs w/o any performance issues.

Mick
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Mick

Hi I am glad I look at this site quite often I think you do
a real good job on everything ssd.

Also I am thinking of buying an extreme 6- Z97 1150 socket with a 4790k canyon this xmas.

Plus the Samsung M.2 XP941 128 I just don’t know?

I was originally going for Asus Maximus Ranger plus the
4790k Canyon and two Samsung 120 gb 850
EVO SSD’s Many thanks if you can help.

MikeGR7
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MikeGR7

It’s easy.
You’ve seen the 840p results. Multiply by 2X and take -10% out.
You’ll find that you are around the same “1GB/S” read/write territory as the M.2’s.
BUT you also get to enjoy that sweet fast ramp up in performance in the low end up to 8K. The 4k write will also be about double.

dravo1
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dravo1

Just curious, are the M2 slots eligible to be included in a RAID set?

Les@TheSSDReview
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Of course the could be used that way but you have to consider that the RAID set of two XP941 SSDs would be restricted to the lowest speed which is dual lane travel. That might get you a negligible improvement on the XP 941 alone in the ultra M.2 slot. Just to be sure I will try to do this prior to taking off for China in a few days…

dravo1
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dravo1

Just to cover all the bases, can the M2s be in a mixed RAID with equal sized SSDs?

felix
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felix

I wonder…what if there were 2 M.2 x4 slots on that board….combined with 2x XP941….

Les@TheSSDReview
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Then any thought of decent gfx, other than integrated…might be gone. Intel needs to increase total PCIe lane count for something like that.

felix
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felix

I wouldn’t care for 1x8PCIE for Graphics ( don’t think it would hurt performance much) and 2x4PCIE lanes for M.2…but you’re right…Intel needs to increase lanes to 24+ for something like this to happen properly…

Yar Nunya
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Yar Nunya

X79! 40 pci-e lanes if using a 6 core SB-E or Ivybridge-E. Too bad it came out in 2011 and X99 isn’t here yet and no X79 boards with M.2 connectors.

Eric
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Eric

I’m actually pretty satisfied with Intel’s iGPU.
I’d love to see two M.2 slots running at PCIe x4, combined to RAID 0, and which can be booted from. Oh my…

Yar Nunya
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Yar Nunya

Exactly, like if an X79 board were to sprout some M.2 connectors in a larger than regular ATX size then one would have 40 PCI-e lanes with which to delegate 8 lanes to GPU A, 8 to GPU B, 4 or 8 to your m.2 SSD’s, and use the rest for the other crap that needs to ride the pcie bus. Perhaps in X99?

Paul Braren
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Such a great article, so glad M.2 is finally arriving…

DanaJRobertson
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DanaJRobertson

It’s great to see you opening up your reviews to more hardware while still keeping it relevant

to storage technologies! http://goo.gl/ai61Qh